[Samba] Samba quit working

I've recently developed these messages coming out of the log.smbd. I can no
longer connect to my samba drives. I get an explorer window, but no shares
displayed. Anyone have any ideas?
Thanks
[2006/10/29 07:58:48, 0] tdb/tdbutil.c:tdb_log(772)
tdb(/var/db/samba/locking.tdb): tdb_reopen: open failed (No such file or
directory)
[2006/10/29 07:58:48, 0] smbd/server.c:open_sockets_smbd(432)
tdb_reopen_all failed.
[2006/10/29 07:58:48, 0] lib/util.c:smb_panic2(1554)
PANIC: tdb_reopen_all failed.